| Group 1 (Trekkers) | Group 2 (Investigators) | Group 2 Subgroup (Climbers) | Group 2 subgroup (Lab staff) |
---|---|---|---|---|
 | number (%) | number (%) | number (%) | number (%) |
Total | 198 (100) | 24 (100) | 14 (100) | 10 (100) |
Male | 125 (63) | 18 (75) | 12 (86) | 6 (60) |
Previous Altitude Exposure(>3500 m) | 85 (43) | 23 (96) | 14 (100) | 9 (90) |
Previous Extreme Altitude Exposure (>5000 m) | 37 (19) | 21 (88) | 14 (100) | 7 (70) |
Smoker | 13 (7) | 0 (0) | 0 (0) | 0 (0) |
Race - white | 191 (97) | 22 (92) | 12 (86) | 10 (100) |
 | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) |
Age | 44.7 (13.7) (range: 18-73) | 35.2 (9.3) (range: 19-59) | 36 (6.9) (range: 22-47) | 34 (12.2) (range: 19-59) |
Height cm | 173 (9.2) | 176 (7.0) | 178.4 (5.9) | 172.7 (2.2) |
Weight kg | 75.2 (13.6) | 77.2 (12.4) | 97.8 (0.9) | 72.2 (9.5) |
BMI | 25.1 (3.2) | 24.8 (2.9) | 25.3 (3.3) | 24.1 (2.2) |
Hb g/dl | 14.5 (1.2) | 14 (0.9) | 14.2 (0.7) | 13.6 (0.9) |
Hct | 43.7 (2.6) | 43.9 (3.4) | 43.9 (2.1) | 43.5 (3.2) |
SpO2% | 97.7 (1.6) | 97.9 (1.0) | 97.9 (1.1) | Â |
Oxygen content mls/l | 196.3 (16.2) | 190.1 (11.6) | 193.9 (10.0) | 184.7 (12) |
VO2max mls | 2862 (799) | 3624 (599) | 3785 (505) | 3398 (671) |
VO2max mls/kg | 38.2 (8.5) | 47.2 (7.6) | 47.4 (8.6) | 47.0 (6.5) |